There are many gas detection products on the market that may appear initially to be the same, but once checked specifications, features and functions show great differences in those products, it can carry out the work and have its own potential values that it can offer. Likewise, separate applications are also very unique in the corresponding designs for each need and process they perform.
Understanding off-construction risks
Before starting to consider gas detection equipment, a risk assessment needs to be conducted. Any employer is obliged to carry out a risk assessment to identify potential hazards and they may include gas, vapor or risks due to oxygen deficiency. If gas risks are identified, gas detection equipment should be used as a risk mitigation method.
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Identify key objectives
Depending on the processes in progress and the gases detected, remote or off-site alarms along with archified data may also be required for health and safety management records. Another factor that affects is the need for enhanced reporting functionality to be required to comply with regulation or a condition of insurance.
Ask the right questions
After determining the main goal, the right devices are selected by asking some important questions. The questions have not come up with 3 big ideas:
- The gases are detected and where can they be?
- Where are the locations and environmental conditions detected?
- Easy to use for users and frequently used staff
Identify the gases detected and where they may be?
The gases detected should be determined by risk assessment, however their experience of gas detection equipment manufacturers and distributors can often help customers in this by relying on their experience of similar applications. However, it is important to remember that it is the user’s responsibility to identify all potential hazards.
It is also essential to identify potential sources of gas leakage, which will help determine the number and location of the gas detector required for a fixed gas detection system.
Consider the environmental conditions
The performance, accuracy and reliability of any gas detection device will be affected by the environmental conditions it suffers. The temperature, humidity and pressure at the locations have a direct effect on the types of equipment selected. Other factors such as potential transformations due to a sea change of its own, day /night conditions and seasonal changes can also affect the types of equipment when choosing.
Understand product features
When considering the areas involved to add additional products. Aspects such as wiring system configuration are very important, especially when added to an existing application. If the system will be integrated into a separate safety system, certain communication protocols may also be required such as HART®, LonWorks or Modbus® which need attention
It is also necessary to consider the on-premises display on the probe set and the on-premises configuration for the display section on the control cabinet
Easy to use for users and frequently used staff
Maintenance periodically is an important factor. Some gases and vapors can be detected with a number of different sensor technologies, for example hydrocarbon gases detected by a catalyst particle sensor or non-dispersed infrared (NDIR). The catalyst particle sensor that wants stable-reliable operation may require high frequencies for routine maintenance, the solution being an infrared sensor (NDIR) but tending to have a higher initial purchase price, but may require less than usual maintenance. As such, resources for carrying out such regular maintenance need to be identified, and in the event of the non-presence of such resources, the budget for third-party maintenance is an important factor in choosing the right equipment.
by TESIN VIETNAM